Components for door manufacturers
Wholesale Door Frames, Casing & Jamb Extensions for Manufacturers
Wholesale door frames, wholesale door casing and wholesale jamb extensions — MDF door trim supplied separately from the door leaf, for factories that make doors themselves but have no millwork equipment of their own: telescopic door frames, flush (coplanar) door frames, casing and jamb extensions, as unfinished blanks, wrapped in PVC foil, or primed for painting.
What You Get
Three supply options — unfinished blank, pre-filmed to your colour, or primed for painting.
Order sizes to match your needs and volumes.
Experience working with door manufacturers in Ukraine.
We'll manufacture to your own drawings — or help prepare them if you don't have any yet.
What You Can Order
Telescopic Door Frame
80 / 100 / 120 mm, also available as INSIDE (56 mm decorative edge)
Flush Door Frame
leaf sits level with the wall, also available as INSIDE (56 mm decorative edge)
Concealed-Installation Frame
for plaster finish or panelling
Telescopic Door Casing
80 mm, also available with a 40 mm wing
Flush Door Casing
front side only, 80 mm
Jamb Extension
100, 150 or 200 mm; custom up to 400 mm in 10 mm steps
Supply Options
Unfinished blank
Bare wood or MDF — you apply the film or paint yourself.
Pre-filmed to your colour
Wrapped in PVC film in the colour you need, ready to install.
Primed for painting
Wrapped in a paintable base film — you paint it in your own colour.
Materials
Frames, casing and jamb extensions are made from wood or MDF — the same raw material used in IN WOOD's own doors [TO VERIFY: blank thickness and MDF grade/density for these parts]. We finish the surface two ways: wrapped in PVC foil in the colour you need — ready to install straight after delivery, or primed for painting — wrapped in a paintable base film, so you apply the colour yourself, matched exactly to your own doors. Both finishes work for telescopic and flush (coplanar) frames alike, as well as for casing and jamb extensions.
Sizes
| Part | Width | Length | Variants |
|---|---|---|---|
| Telescopic door frame | 80 / 100 / 120 mm | up to 2.5 m | also available as INSIDE (56 mm decorative edge) |
| Flush (coplanar) door frame | flush with the wall | up to 2.5 m | also available as INSIDE (56 mm decorative edge) |
| Telescopic casing | 80 mm | up to 2.5 m | 40 mm wing |
| Flush (coplanar) casing | 80 mm, front side only | up to 2.5 m | — |
| Jamb extension | 100 / 150 / 200 mm | up to 2.5 m | custom up to 400 mm, 10 mm steps |
Lead Time. A trial batch (~30 sets) takes about 1.5 weeks. A larger batch (~200 sets) takes up to a month.
How We Work
Inquiry
Tell us which parts you need — frame, casing or jamb extension, sizes and your approximate monthly volume.
Drawings or a sample
We work to your own drawings, or help prepare them if you don't have any yet.
Trial batch
About 30 sets, roughly 1.5 weeks — you check quality and fit before placing a full order.
Full production run
A batch sized to your monthly volume — up to around 200 sets a month.
Why Manufacturers Order Frame Components Separately
Equipment for cutting, milling and edge-banding frames and casing is a production line of its own — dedicated machinery for specific profiles and extra staff to run it. For a door manufacturer that only makes door leaves, that's a sizeable investment that only pays off at high volumes. That's why many factories order their millwork components separately: it lets them launch new door models faster, without waiting to build out their own component production, avoid leaving expensive equipment idle on parts they only need occasionally, and respond more flexibly to seasonal demand.
Who it's for: door manufacturers who don't have their own equipment to make frames, casing and jamb extensions.
Delivery & Payment
Payment and delivery are agreed individually for each order, depending on batch size, finish and destination [TO VERIFY: payment methods for businesses, deposit terms, carrier and delivery cost within Ukraine and abroad — including to Poland and other EU countries].
Learn More: IN WOOD door catalog · Frame, casing and jamb extension specifications
Questions About Door Frame Components
Can I order just the unfinished blank?+
Yes — we supply bare wood or MDF blanks, and you apply the film or paint yourself.
Can you match our own colour?+
For an exact match to your own door colour, the "primed for painting" option works best: we supply the part wrapped in a paintable base film, and you paint it in the exact shade you need. If a colour from our own PVC film palette works for you, we can wrap it in that instead.
What are the maximum frame and casing sizes?+
Up to 2.5 m in length. Jamb extensions come in 100, 150 or 200 mm (custom sizes up to 400 mm in 10 mm steps on request), casing is 80 mm wide, also available with a 40 mm wing.
How long does an order take?+
A trial batch of about 30 sets takes roughly 1.5 weeks; a batch of 200 sets takes up to a month.
Do you manufacture to the customer's own drawings?+
Yes, we manufacture to your own drawings. If you don't have any yet, we'll help prepare them before production starts.
Do you deliver within Ukraine and abroad?+
We deliver within Ukraine. Delivery abroad, including to Poland and other EU countries, is arranged individually for each order [TO VERIFY: carrier and approximate international delivery times].
Can we get samples before ordering a batch?+
Ahead of a full order, we recommend a trial batch (~30 sets), which also serves to check quality and fit [TO VERIFY: whether individual samples can be sent before the trial batch].
What's the difference between a telescopic and a flush (coplanar) door frame?+
A telescopic frame is the classic option, available in widths of 80, 100 or 120 mm. A flush (coplanar) frame sits level with the wall, with the door leaf showing no projecting frame.
Tell us what you need and how much
Frame, casing or jamb extension, your monthly volume and preferred supply form — we'll put together an offer.