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Door Blank 48mm
Door blanks are some of the most commonly used construction materials. They are long-lasting and provide strength and security for all internal and external door applications. Some solid door blanks are also rated for fire, with resistance for between 30 and 60 minutes.
You can select the door blanks you need from a wide range offered by most retailers across the UK, including fire door blanks and external door blanks. The standard measurement for these door blanks for sale is 44mm and 54mm in thickness.
What are door blanks?
Door blanks are fire rated flush doors that can be cut to fit your doorways. They are usually bought in bulk since they can be installed in the entire home or throughout a large construction project.
Compared to the prices of fully finished flush fire doors, door blank prices are considerably lower, and that is why they are ideal for trade customers with large projects. Being unfinished means they can be customised to fit the style and architecture of the building.
We stock two ratings; FD30 (can withstand fire for up to 30 minutes) and FD60 (can withstand fire for up to an hour). These two are the most common types specified.
What are fire door blanks used for?
Fire door blanks serve the following main purposes:
- To create doors rated FD30 or FD60, suitable for stairs, exits, and locations specified by building regulations (these indicate how long the door blank can resist fire during testing).
- For internal or external doors that require durability, safety, and compliance with fire codes.
- To provide flexibility since unfinished doors can be matched to the home/building’s decor and hardware.
- For large projects or trade work where cost and compliance have to be balanced. Blanks are less expensive but can still be made fire rated, delivering good value.
Types of door blanks
On our site, we have three main types of fire door blanks, each with different materials, finishes, and fire ratings. Here they are:
| Type | Material & Finish | Fire rating and key features |
| Chipboard Door Core | Graduated-density 44mm chipboard core, unlipped square edge. | FD30 when used with the correct hardware. The door cores are for internal use, paintable, easy to cut, and IFC-certified. |
| MDF Fire Door Blanks | Solid core blanks faced with 6mm MDF for a smoother finish. | Offered in both FD30 and FD60 ratings. These are lightweight solid core, can be painted or stained, and are unlipped. |
| Plywood Fire Door Blanks | Solid core blanks faced with hardwood or plywood veneer, are heavier, and sturdier. | Many of the options are FD30, with some 54mm blanks reaching FD60. Suited to internal and external use depending on the blank’s specification. |
Benefits of door blanks
The main advantages of using fire door blanks include:
- Fire resistance – Many of our blanks are certified FD30 or FD60, meaning they resist fire and sometimes smoke for 30 to 60 minutes, protecting crucial exits and meeting building regulations.
- Strength and security – Solid cores give door blanks weight, resistance to warping, and stiffness when in use.
- Customisable – The blanks come without finish but take paint, stain, or varnish well, giving you control over the final colour and surface to match your decor.
- Cost efficient – Because you are buying blanks and often in bulk, the prices are lower compared to a finished version, which is ideal for projects with many doors.
- Flexible sizing – The door blanks come with an allowance for final fitting to ensure the final size is exact and adheres to the datasheet allowance and recommendations.
- Compliance – Purchasing certified, tested blanks ensures that, with proper fitting, a matching frame, seals, and hardware, the door set complies with fire safety rules.
Why choose our door blanks?
We stock a wide range of FD30 and FD60 blanks in both 44mm and 54mm thickness. They come with plywood, MDF or chipboard cores and with various facings so that you can find the right blank for your project.
We only stock trusted and tested products that adhere to BS 476-22 or EN 1634-1 to deliver the protection promised.
You can get them at competitive prices, especially for bulk orders. We offer full technical support (datasheets, recommendations for finishing, guidance on fire rating, hardware, etc.).
Order today to enjoy fast deliveries anywhere in the UK.
Find robust fire rated door blanks for your next project from our FD30 and FD60 blanks to get strength, security, and compliance at fair prices.
At Sheet Materials Wholesale, you can purchase Door Blank at low wholesale prices with fast nationwide delivery for most of items within 1-3 working days across the UK. Next-day delivery is also available on most orders. Competitive rates guaranteed.
FAQ
Can fire door blanks be cut to size?
Yes, they can be cut to size, as they come unfinished with a solid core that can be sized to fit your specifications and trimmings. Please refer to the manufacturer's cutting guidelines.
How to install a door blank?
This requires fitting it into an existing door frame. That means you need the skills to mortise the hinge locations on both the door and the frame, attach the hinges, and then secure the door to the frame, ensuring it leaves even gaps on all sides and slides open and shut smoothly.
What doors require an FD60 rating?
FD60 doors are usually required in large commercial settings where the risk of fire is higher, where buildings have multiple floors, or where the escape routes in the event of a fire are complex.
Door Blank Range
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8 x 48mm Edgeman Engineered Door Lipping EV650 2135mm FSC®
8mm x 48mm Door lipping made specifically for Therman engineered veneer (EV) FD30 doors in 2135mm length with a lipping density of 650kg/m3.
£2.28£2.74 Ex VATInc VAT Add to cart -
8 x 48mm Edgeman Engineered Door Lipping EV650 2440mm FSC®
8mm x 48mm Door lipping made specifically for Therman engineered veneer (EV) FD30 doors in 2440mm length with a lipping density of 650kg/m3.
£2.12£2.54 Ex VATInc VAT Get restock alert
