Construction Features

Portal Frame Connector Plates.
The portal ridge and knee connector brackets are pressed from thick zinc galvanised steel and are fixed through pre-punched holes with high tensile bolts to ensure the strongest possible connection.
Purlins and Girts
The purlins and girts (the members that the roofing and wall cladding are fixed to) are fixed to the sides of the portal frame using high performance Tech-screws and bolts.

This method of fixing is not only strong but it means that you have more usable space inside your building.

Complete Building kit ready for despatch
Hold Down Brackets
These are slotted for ease of fixing to both the portal leg and to the concrete slab.
Roof Lights
Fitted as standard on all buildings, 2 per Bay allowing extra natural light into your building.
Roof Pitch
The buildings have a standard 11 degree pitch roof which is not only strong but is aesthetically pleasing. Other pitches are available.
Roof and Wall Cladding
The roof and wall cladding is roll formed from high tensile steel. Your roof and wall cladding are galvanised with a 200 micron plasticol coating in a wide range of colours. This method ensures a life expectancy of over 40 years.
Gutters & Barges
The gutters and barges are roll formed in a unique profile that not only adds strength but also provides an attractive finish to your roof.  The gutters and barges are available in a wide range of colours to compliment your building.
Windows may be purchased wholesale and fitted to all buildings.
Fitting instructions available on request.
Personal Access Door (PA Door)
Our doors are built to last and come complete with security lock.
All door openings and corners are protected with coloured plasticol coated 0.7mm galvanised steel, roll formed flashings to ensure a neat and weather tight finish. The edges of the flashings are double folded to ensure there are no exposed sharp edges.
Johnstone Steel Buildings offers a wide range of doors including roller and sectional doors in sizes to fit most applications.

Doors can be fitted into the side or the gable end of standard portal buildings.

Please advise Johnstone Steel Buildings of any particular door clearance size requirements you may have.