Summer House Project


Oak Framed Summer House for a client in Wiltshire designs by Cronoak and built with partners Penny’s Mill Ltd

Work finished in May 18 on an Oak framed Summer House for a client in Wiltshire.  The design by Cronkoak was developed with the client who wanted a year round building that could be used in the summer to enjoy their stunning views or at other times as a bolt-hole.

The oak frame was built in our partner’s, Penny’s Mill Ltd, workshop and we worked with the client’s own builder who provided all the attendance work.  Cronkoak also obtained planning permission for the development producing all the associated drawings for planning, the workshop and builders, plus the building spec.

Waney edge oak delivered to workshop

Workshop Phase 1

Once the design is finalised, cutting lists are prepared to determine the amount of timber required.  If waney edge timber (wood that still has the sap wood and some bark on), is being purchased, it’s necessary to make an allowance for wastage.  Working with a timber supplier who has someone who is good at selecting timber for a cutting list can make a significant difference on price.

Once the timber has been delivered, the first step is to select and cut the rough sections, allowing for wastage to get square edges.  Then it is planed down so you have square face and top edges before putting it through a thicknesser, to get the timber to the required finished size.  The last stage is to cut to length.  The old axiom of “measure twice and cut once” is very true of this stage. 

Cut sections that have been planed to size and length










Workshop build – Phase 2

Once cut to length, assembly gets underway.  More complicated sections, such as the roof trusses, were cut to a template to ensure they were all of equal size, making erection of the completed build on site much easier.  The frames is erected in the workshop so that any problems or issues can be ironed out before being transported to site.  This ensures all the joints and sections fit together, door hinges and locks cut, leaving only the internal roof cladding and external oak cladding to be cut on site.

Roof trusses were templated

Trial frame erection

Erection on site

Prior to erection on site the builder cast a new slab for the oak ground beam to stand on.  Once that was dry, erection commenced.  Knowing that everything will fit together makes the on-site work much more straightforward. All of the frame had to be erected on site and is fixed with oak pegs.The trusses were screwed with stainless steel screws, prior to the cladding being added.  The roof was a warm roof construction, with the builder adding a roofing membrane, an insulation layer, ply sheeting, battens and slates over the internal oak clad ceiling.  One side and the rear wall were oak clad externally with a membrane, insulation layer and a decorated plaster board finish internally.  Powder coated aluminium windows to match the house colour were installed over panels with brick facias. Finally tiled flooring was laid on a ply base in between the ground beam. Close working with the builder was essential to ensure a successfully completed summer house. 

Straightforward erection on site

Finished summer house with decking and garden complete

Summer house images

Side view with brick facia

Front view

Internal finsihes

Side detail