Useful tips to consider when purchasing a conservatory.

Internal floor area is an important consideration when ordering a conservatory though many suppliers will quote external dimensions.

If external dimensions are quoted then a typical internal depth (projection) is 10.5 inches (275 mm) less than external depth while internal width is 21 inches (550 mm) less than external width if using cavity wall construction. That can make a big difference to available internal floor area.

So, stake out with pegs and string, as accurately as possible, the internal area of your new conservatory to show installers when obtaining quotations. Leave it there until you have obtained your final quote as a reference.