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The Heritage Collection / Extension Board

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Extension Board

£21.29 Incl. VAT

Oak stairs are hugely popular, with the natural subtle tones of oak treads adding a real wow factor to your home.

Oak stair cladding is the most cost effective way to achieve an oak staircase.  Keep your existing stairs and simply bond new oak treads and risers over the top of the existing ones

Extension boards are designed to be used in conjunction with the straight step pack to complete a quarter space landing.  Each extension board adds 142mm depth to a straight tread pack

SKU: HDFEB1O Category:


Most newer homes are fitted with softwood or MDF stairs, and the cost and mess involved in replacing them can be offputting. Our Oak Extension Board is one of many products that are part of our Heritage Oak Stair Cladding Range

Heritage oak stair cladding offers you a simple cost-effective solution. By retaining your existing stairs, and bonding new oak treads and risers over the top, converting your staircase to solid oak becomes an easy weekend DIY job and better yet the cost is usually a fraction that of a new oak staircase.

We have designed The extension board to help clad a quarter space landing in conjunction with the straight tread pack.  Quarter space landings are usually square and are the same depth as the staircase width, for example, a landing of 850mm wide/deep.  The standard straight tread pack is 284mm deep, with each extension board adding a further 142mm depth.  So our 850mm deep landing would require 1 straight tread pack and 4 extension boards.  The system will with stairs that have straight treads up to 1000mm wide.  Have a look at case study 2, in the downloads tab for an example

Pack contents:

1 solid oak extension board 1000mm wide, 142mm deep, 14mm thick, with Tongue & Groove profile

Additional information

Weight1.4 kg
Dimensions100 × 14.6 × 1.4 cm

Timber Grades

Stair cladding is made using a specially selected prime grade of French oak. Most pieces will be clear, with the occasional small knot which helps to emphasise the solid oak nature of the product

The riser board is made from a A grade oak veneer bonded to an MDF 6mm base

Standard and Custom Sizes

Stair cladding is designed to fit stairs with straight treads up to 1000mm wide when measured between the strings. The extension board will help clad quarter space landings up to 1000mm deep, when used in multiples in conjunction with a straight tread pack.

Tread depths (know as the "go" of the tread) of up to 1000mm can be accommodated

All of these dimensions are well above what is normal for UK stairs.


Oak stair cladding is supplied unfinished to allow you to match into your existing decor. We can supply finishes from our flooring finishing range if desired.



If bought in isolation, this tread would ship with a parcel courier. If purchased as part of a full staircase order then this will normally be shipped on a pallet.

The pallet carrier specifies the delivery as "kerbside" meaning they will unload from the truck only. You will need to be on hand to help move the goods indoors. Individual treads are easy to carry once the pallet is unpacked.


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