Rafter span tables for surveyors – Roof construction

Surveyors’ span tables for designing roof rafters

for pitched roofs, flat roofs and ceiling joists

Surveyors and structural engineers utilise data from tables below to help calculate the correct size, strength and centres of roof timbers for the required spans and loadings.

Click here for STRUCTURAL DESIGN CALCULATIONS

PITCHED ROOF RAFTERS

Ceiling binders – span tables

FLAT ROOF JOISTS

Click here for STRUCTURAL DESIGN CALCULATIONS

Flat roof joists – Strength Grade C24 timber

Flat roof joists for walking on – Strength Grade C24 timber

Click here for STRUCTURAL DESIGN CALCULATIONS

Find the right local…

Save money by cutting out the banks

By arranging your home survey directly online - rather than via a mortgage lender - you can save the large chunk of the survey fee that the banks normally keep. They may still want to instruct a valuer to carry out their mortgage valuation, but don’t let them try to sell you an expensive Homebuyer or Building Survey from one of the large, target-driven, corporate firms on their 'panel'.

Testimonials

“We would like to put on record how impressed we were by the service we received. Rightsurvey unfailingly followed up our enquiries and concerns, and Nick’s advice on maintaining an older property is proving invaluable.”
Peter Spink, Sheffield

Recommended by the experts

Rightsurvey is featured exclusively in the Haynes Home Buying and Selling Handbook and also in the best selling Haynes Home Extension Manual.