Moulding specification: how to prepare profiles, cutting plan and quantity for purchase

The layout can perfectly calculate 42 meters of molding. That figure alone is still not enough for purchasing.

The procurement specialist needs to know which profile was selected, its SKU, the length of a single piece, which actual cut segments make up the project, how those segments are distributed across whole products, which offcuts can be reused, whether separate corner elements are needed, and exactly what quantity should go into the order.

That is why a molding specification is not just a table with "name" and "meters" columns. It is the linking document between the working geometry and purchasing:

APPROVED PROFILE → PROJECT CODE → SKU → SECTION → PRODUCT LENGTH → CUT LIST → CUTTING MAP → CALCULATED LENGTH → ORDER QTY → CORNERS → FINISH → SAMPLE STATUS → REV → ORDER.

A good specification lets you open the project months later and understand without guesswork which profile was approved, where it is used, how many whole pieces need to be ordered, and why the final purchasing quantity differs from the clean meterage on the drawing.

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What a molding specification is

The layout answers the question:

where does the molding run?

Specification:

which specific molding and how many physical products need to be ordered?

On a working drawing, it is convenient to use a short code:

ML-01

That is not enough for purchasing.

Required:

• manufacturer;
• SKU;
• actual cross-section;
• the material;
• product length;
• calculated linear footage;
• number of whole planks;
• Cutting;
• corner elements;
• finish;
• status;
• current revision.

That is exactly why the specification appears after selecting a profile, rather than instead of making a selection.

Why the line “molding — 42 m” is insufficient

Such a line conveys only one thing: the total geometric length.

It does not answer the key questions:

• which SKU;
• what is the length of one strip;
• what cross-section;
• which material;
• how many whole items to buy;
• where the strips are used;
• which segment lengths are needed;
• Can leftovers be used?
• are there separate corners;
• is L/R needed;
• which version of the project is current.

As a result, the procurement specialist has to redesign the purchase.

This is a poor boundary of responsibility.

If the designer has already approved a specific profile and built frames based on it, the procurement document must preserve this link.

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When the specification is being prepared

Not at the beginning of the concept.

At an early stage, moldings may still be candidates.

The normal sequence is:

shortlist → specific profile → 3D / DWG → approval → APPROVED → calculation → specification.

Before APPROVED, it is useful to keep a working table.

But the final Order Qty is best calculated after the geometry and SKU have stopped changing.

Otherwise, each new profile resets part of the previous calculation.

First the specific SKU, then the final calculation

Two externally similar profiles may differ in:

• length;
• width;
• depth;
• mounting plane;
• repeat;
• joint method;
• corner elements.

Because of this, the same clean square footage can yield a different number of planks.

Therefore, for of polyurethane moldings first, the actual product item is selected.

Only then is the final cutting plan built.

Project Code and SKU must exist simultaneously

ML-01 — convenient for the project.

STAVROS / specific SKU — necessary for purchasing.

Project Code is needed to quickly link:

• the layout drawing;
• node;
• the specification;
• quantity schedule.

SKU is needed to buy exactly that product.

They do not replace each other.

Example:

Project Code	Manufacturer	SKU	Status
ML-01	STAVROS	specific	APPROVED

The drawing retains a short ML-01.

The specification reveals the product essence.

Which columns are needed in the molding specification

A practical structure might look like this:

Field	Content
Project Code	ML-01
Manufacturer	STAVROS
SKU	specific
Category	wall molding
Material	PU / wood / MDF
Section	width × depth
Product Length	Plank length
Calculated Length	Net length
Order Qty	Number of planks
Room	Room
Zone	Wall-02 / Frame-A
Finish	Project
DWG	file
3D	file
Sample Status	APPROVED
Status	FOR ORDER
Revision	REV03
URL	Product

For a small project, some fields can be removed.

But you cannot remove those without which the product cannot be unambiguously identified or ordered.

Why the cross-section needs to be stored separately

The profile name is not enough.

The cross-section allows you to quickly check:

• whether the DWG matches the product;
• whether the SKU can be replaced;
• how the molding fits the casing;
• what depth the frame provides;
• how it works with the wall panel;
• how much the inner field of the composition changes.

Let's imagine a frame with an outer width of 1200 mm.

A 40 mm profile leaves an inner width of:

1200 − 2 × 40 = 1120 mm.

65 mm profile:

1200 − 2 × 65 = 1070 mm.

The difference is 50 mm.

If there is a sconce or overlay inside the frame, replacing the molding already changes the composition.

Therefore, Section is not a decorative characteristic.

This is a working parameter.

Material — required field

Molding with the same function can be:

• polyurethane;
• wooden;
• made of MDF.

But in terms of procurement, these are different systems.

The material affects:

• SKU;
• finish;
• installation;
• length;
• processing;
• stock behavior;
• sample.

For a wooden profile, the species and finish are additionally important.

For polyurethane — the specific condition of the item and the project finish.

The following line must not be left blank:

Material: PU / wood — to be confirmed

if the document is already being passed to purchasing.

Product Length — one of the main fields

The clean meterage exists in the project.

Commercial length — in the actual delivery.

Let's say the project requires 24 m of molding.

This does not yet mean that 24 m need to be purchased.

If the profile is supplied in whole planks, Order Qty is not determined by division alone.

First, you need to know the actual lengths of the parts.

It is Product Length that turns an abstract linear measurement into a product.

Calculated Length and Order Qty are different quantities

For example:

Calculated Length: 24.0 m

Order Qty: 14 planks

The first figure tells you how much molding is physically present in the project.

The second tells you how many items need to be purchased.

They do not have to match in equivalent linear measurement.

The reason is cutting.

If you store only Order Qty, it is harder to verify the architectural requirement.

If only Calculated Length is stored, the purchase is not ready.

Both are needed.

Why you can't just divide the total linear meters by the plank length

Let's imagine identical 24 m.

Option A:

• eight parts of 3000 mm.

Option B:

• twenty parts of 1200 mm.

The sum is the same.

But cutting by planks can be different.

Long parts almost never combine with each other.

Short ones sometimes allow a single plank to be used more efficiently.

Therefore, the formula:

total linear meters / plank length

gives only a theoretical minimum.

A real order is built from segments.

Cutting List: a list of actual parts

Cutting List — an intermediate document between the exploded view and the cutting map.

For example:

Code	Detail	Length	Quantity
ML-01-V	Vertical	1950 мм	8
ML-01-H	Horizontal	1350 мм	8
ML-02-V	Vertical	2400 мм	4

It does not yet specify which board each part is cut from.

But it is already clear:

• length types;
• repeatability;
• quantity;
• which segments can be grouped.

For repeating frames, the Cutting List is especially useful.

Cutting Map: how to distribute parts across boards

The next step is to lay out the parts across physical products.

Conventionally:

Plan 01 → 1950 + remainder

Plan 02 → 1350 + 600 + remainder

Plan 03 → 1350 + 1350

This is already a purchasing cutting map.

It answers the question:

how many whole strips are needed to produce all the project parts?

This is exactly where useful and useless remnants become visible.

Why the Cutting Map should be linked to SKU

A cutting map without SKU quickly becomes outdated.

After replacing the item, the following may change:

• Product Length;
• cross-section;
• repeat;
• corner geometry;
• profile orientation.

The old map no longer guarantees the correct Order Qty.

Therefore, it is useful to store the following in the calculation header:

ML-01 / STAVROS / SKU / REV03

Then the origin of the numbers is clear.

Molding frame as a calculation module

If a project has many identical frames, it is convenient to create a type:

FRAME-A

For example:

• outer width — 1200 mm;
• outer height — 1950 mm;
• SKU — ML-01;
• 2 verticals;
• 2 horizontals.

The Cutting List is generated once.

Next:

FRAME-A × 14

This reduces the number of manual recalculations.

But typification works only for truly identical geometry.

Typical frames in multiple rooms

If FRAME-A repeats in the living room, hallway, and bedrooms, the entire volume of one SKU can be counted together.

This makes it possible to redistribute leftovers between rooms.

For example, a short leftover from a long vertical in the living room can cover a horizontal in the corridor.

But the installation schedule must still store the distribution by Room and Zone.

Purchasing aggregates.

The project distributes.

When to count rooms together and when separately

If the order is placed as a single batch and the material arrives at one site, a shared Cutting Map is usually more efficient.

If the project is divided into stages:

• first phase;
• separate floors;
• different contractors;
• different deliveries,

it is wiser to cut by batches.

Otherwise, the remainder exists on paper, but in reality it is at another stage and cannot be used.

The calculation must take into account the real logic of construction.

It is better to separate verticals and horizontals

Even if the SKU is the same.

The reason is simple: the lengths are different.

For example:

ML-01-V = 1950 mm

ML-01-H = 1350 mm

If the table contains only ML-01 = 24 m, the structure of the parts is lost.

Separation helps:

• build a Cutting List;
• optimize the cutting map;
• check standard frames;
• quickly recalculate changes.

45° miter cut and specification

The miter cut itself does not add meters to the geometric perimeter.

But it affects the usable length of the product.

After the miter cut, the remainder may:

• become shorter;
• lose a convenient straight edge;
• become unsuitable for the next segment;
• require a different orientation.

Therefore, the four sides of the frame cannot be considered merely as the sum of lengths.

The joining method affects the Cutting Map.

Internal and external corners

If the corner is formed by cutting the profile itself, there is no separate SKU.

If a special decorative corner is used, the situation changes.

Then:

a corner ≠ linear molding.

It gets its own specification line:

• Project Code;
• SKU;
• orientation;
• qty;
• finish;
• status.

Suitable related products can be checked in the section Decor for Molding.

Left and right corner elements

If corners exist in mirrored versions:

COR-01-L

COR-01-R

they cannot be combined:

corners — 12 pcs.

More correctly:

COR-01-L — 6 pcs.

COR-01-R — 6 pcs.

This protects the purchase from a formally correct but physically useless quantity.

Ornamental molding and repeat

A smooth profile is easier to cut.

The ornamental one has a repeat.

The leftover of the required length is not always usable.

Causes:

• the pattern starts from the wrong phase;
• the joint breaks the motif;
• centering is required;
• the corner must fall on a specific part of the ornament.

Therefore, for ornamental profiles, the Cutting Map must account for more than just millimeters.

Sometimes a useful remnant exists geometrically, but not compositionally.

Why a remnant cannot be automatically considered usable

A cut-off piece may turn out to be:

• too short;
• already cut;
• with the wrong orientation;
• with an unsuitable repeat;
• damaged;
• inconvenient for the next part.

Therefore, the cutting plan must distinguish:

remaining length

and:

usable remainder.

This is especially useful in large projects.

Wall and ceiling molding

Even if the material is the same, the function should be recorded separately.

For example:

Category: wall molding

Category: ceiling molding

Why is this useful?

A ceiling profile may have a different usage geometry, anchoring, and nodes.

A wall profile may have another.

If both are simply recorded as molding, filtering and assembly become worse.

Moldings and cornices must not be mixed in one line

In search, the user may combine these words.

Not in the specification.

Molding and cornice have different:

• function;
• sections;
• installation locations;
• design schemes;
• design details.

Therefore:

ML-01

and:

CR-01

must be separate line items even with the same material and manufacturer.

How to specify wooden molding

for of wooden moldings the main fields should be supplemented with:

• breed;
• grain direction, if it is critical;
• finish;
• version/design variant;
• length;
• sample status.

If used Wooden trim, the material cannot be left at the level of wood.

Oak и beech — different procurement decisions.

How to specify polyurethane molding

For polyurethane, the following are important:

• SKU;
• section;
• Product Length;
• design color;
• condition for painting;
• matching corners;
• decorative overlays, if they are part of the system.

At the same time, the design color must not change the identity of the product.

Product first.

Then finish.

Finish is not part of the SKU name

Store separately:

Product SKU

and:

Project Finish

For example:

SKU: MLD...

Material: PU

Finish: RAL 9010 matte

This is especially important when a single item is used in multiple rooms with different finishes.

The SKU may be the same.

The Project Finish may differ.

Sample Status

Useful sequence:

• NOT REQUESTED
• REQUESTED
• RECEIVED
• APPROVED

If the sample is critical, the item should not automatically move to FOR ORDER until approved.

For physical verification, you can use Product samples and specialized Samples and catalogs of polyurethane decor.

In a large specification, a dedicated Sample Status field is far more useful than a comment in the notes.

Linking the specification to DWG

The working profile must match the product line.

Combination:

Project Code → SKU → DWG → specification.

For this, it is useful to use DWG moldings, but the file itself must be additionally checked for compliance with the selected SKU and scale.

If the molding in CAD was stretched or modified, the original SKU no longer describes this geometry.

Linking specifications to 3D

It is better to make the 3D object name product-readable.

Bad:

molding_final2

Better:

STAVROS_[SKU]

Or:

ML-01_[SKU]

Then the designer, visualizer, and specifier are talking about the same object.

This is especially useful if the project has five similar profiles.

Room and Zone

Room responsible:

in which room?

Zone:

in which part of the room?

For example:

Room: Living Room

Zone: Wall-03 / Frame-A

This is much more precise than the label "living room".

A single room can contain several frame types and several SKUs.

Zone makes the specification easy to read for installation.

How to manage status

A convenient sequence:

CANDIDATE → SELECTED → SAMPLE APPROVED → APPROVED → FOR ORDER → ORDERED.

The main rule:

must not end up in the procurement selection CANDIDATE и SELECTED.

Only:

APPROVED / FOR ORDER.

This way the shortlist doesn't turn into a random order.

How to manage REV

For example:

REV01 — first release.

REV02 — frame changed.

REV03 — SKU replaced.

For each revision, it is useful to keep a brief change log.

This allows you to quickly understand why the Order Qty changed.

If an SKU was replaced in REV03, the old Cutting Map should not continue to be used without verification.

Why replacing an SKU requires recalculation

A new profile can change:

• Product Length;
• section;
• repeat;
• corner system;
• Cutting;
• number of strips.

Therefore, you cannot simply replace the item code in the cell and leave the old Order Qty.

The correct sequence is:

new SKU → check section → check DWG → rebuild cut list → rebuild cutting map → recalculate Order Qty → new REV.

This protects the project from silent substitution.

Specification and estimate are different documents

Specification

responsible:

what to order and how much?

Estimate

responsible:

How much will this cost?

Price is attached only after the following are locked in:

• SKU;
• Order Qty.

Otherwise, the cost changes with every new profile and creates false precision.

When to add price

After:

SKU → Order Qty.

Useful to keep nearby:

Price Checked Date

especially if the project runs long.

But price should not become part of the product's identity.

SKU is responsible for the product.

Date and cost are for commercial verification.

How to aggregate a single SKU before ordering

A single molding profile can be used in different rooms.

For example:

Living / ML-01 = 8 strips

Hall / ML-01 = 6

Bedroom / ML-01 = 10

Before purchasing:

ML-01 = 24 strips

But the original distribution by zones must be preserved.

Otherwise, after delivery, the installers won't understand where the volume is supposed to go.

A good specification can be simultaneously:

• for design;
• for purchasing.

When a separate reserve is needed

The reserve should not be automatically added as the same percentage to all profiles.

It depends on:

• cutting complexity;
• the number of corners;
• pattern repeat;
• segment lengths;
• material;
• reorder capabilities;
• object requirements.

It is useful to distinguish:

Cutting Waste

and:

Reserve Qty.

The first comes from the actual cutting.

The second is a deliberate additional quantity.

Typical molding specification mistakes

Total linear meters only

No Order Qty.

Consequence: the order assembler recalculates the project from scratch.

No Product Length

Unable to verify the number of planks.

No Cutting List

Identical linear meters are interpreted as the same consumption.

No link to SKU

The profile in the drawing may differ from the one purchased.

Angles are hidden in the linear meters

Individual SKUs are not included in the order.

L/R are merged

The quantity is correct, but the order composition is not.

Finish is recorded in the product name

It is difficult to separate the product from the project finish.

Old Cutting Map after SKU replacement

Order Qty is no longer reliable.

No REV

It is unclear which version the order was based on.

Final audit before ordering

Before handing over to purchasing, check:

1. each Project Code is decoded;
2. Manufacturer is specified;
3. SKU specified;
4. Section matches the DWG;
5. Material is selected;
6. Product Length is up to date;
7. Calculated Length verified;
8. Cutting List assembled;
9. Cutting Map verified;
10. corner elements added;
11. L/R are separated;
12. Finish recorded separately;
13. Sample Status = APPROVED if a sample is required;
14. Status = APPROVED / FOR ORDER;
15. Order Qty calculated;
16. Room and Zone specified;
17. Revision is up to date;
18. The URL leads to the desired product page or category.

If after this a row remains in the table:

molding — about 40 m

the specification is not yet complete.

How to move from specification to order

Final workflow:

APPROVED SPEC → filter FOR ORDER → aggregate identical SKU → verify Order Qty → check availability → commercial offer → order.

For the polyurethane part of the project, you can proceed to polyurethane moldings, and for the wooden one — to wooden moldings и wooden trim.

If the project is assembled as a decor system, additionally useful are Decor collections и Decor for Molding.

The professional workflow for a project can be linked to the section STAVROS for designers and architects.

The main principle of the specification is simple:

you need to purchase not "meters of molding," but specific physical items calculated by actual SKU and actual cutting map.

That is why the final line of the specification must allow the entire chain to be traced in both directions:

drawing → Project Code → SKU → Cut List → Cutting Map → Order Qty

and:

ordered item → SKU → Project Code → specific frame or project zone.