Structural Oak


Man has long regarded native oak as an ideal building material. From grand medieval timber-framed mansions to understated twenty-first century homes, 'English' Oak has been the structural timber of choice.

Long-lasting strength, plus flexibility, utility and beauty – 'English' Oak delivers it all. This uniquely attractive combination of benefits explains why the desire for oak remains so strong.

'English' oak’s range of beneficial properties is substantial. It combines strength and comparative lightness with ready workability. So oak adds considerable utility to construction. Then there’s its highly attractive finish too. Oak’s tight grain adds character and interest to a structure as well as providing a perfect backdrop for fine arts and fabrics

We essentially offer two types of structural Oak: Green Oak Beams used for structural replacement and new Oak frames where shrinkage isn’t a problem… and, Air Dried Oak Beams for repairing old timbers and new Oak frames where movement has to be kept to a minimum.


Green Oak or air dried Oak, there’s an extensive range to pick from:

Product Section (MM) Length (M)
Green oak beams 150x75, 150x100, 150x150, 225x75, 225x100, 225x150, 200x200, 225x225 6 standards: 2.4, 3.0, 3.6, 4.3, 4.8, up to 6
Air-dried oak beams Up to 350x350 Up to 7
Air-dried ex-plank 25-150 Up to 4.5
Softwood beams Up to 300x300 Up to 7

*Whippletree can provide unusually long Oak beams, complete logs or bespoke commissions requiring complex/demanding machining and/or finishing. From shaped ends to more forms such as tapers, small or large curves,jowl posts. Moulded and chamfered beams and turned columns. Whatever the constructional or roof truss need, Whippletree can supply it.

Note: The stock sizes above are for next day collection. Any size can be milled within 7–10 days.

Oak Dowels

Thickness Bundles of 1.2M
1/2” (12.5mm) 5 per bundle
3/4” (18mm) 5 per bundle
7/8” (22mm) 5 per bundle
Whippletree logo
Tel: 01763208966