Specifications architects - Bill of Quantities

Dear architect,

At Gorter we understand how time consuming, and sometimes outright frustrating it can be to specify a product and complete the Bill of Quantities/ specification for a project. This is why we have collected all our specifications into easy to consult tables. Please choose one of the categories in the drop-down menu below and open the specification by clicking an icon (PDF or HTML). The HTML text can directly be implemented in your documents with copy/ paste.

If you require additional information or drawings, please contact us.

Roof hatches


	Roof hatch	Roof hatch fire rated
Passage in mm		Roof hatch fire rated
700 x 900
700 x 900
900 x 900
900 x 900
700 x 1400
700 x 1400
1000 x 1500
1000 x 1500
1200 x 1200
1200 x 1200
1000 x 2000
1000 x 2000
900 x 2400
900 x 2400

Wall doors and ceiling doors


Passage in mm	type Universal	type fire rated
250 x 250
250 x 250
400 x 400
400 x 400
500 x 500
500 x 500
600 x 600
600 x 600
600 x 800
600 x 800
800 x 800
800 x 800

Fire rated: roof, floor, wall and ceiling


Passage in mm	Roof hatch, fire rated	Passage in mm	Wall doors and ceiling doors type fire rated	Passage in mm	Floor door, hinged, with checker plate cover, fire rated
700 x 900		400 x 400		600 x 600
700 x 900		400 x 400		600 x 600
900 x 900		600 x 600		600 x 800
900 x 900		600 x 600		600 x 800
700 x 1400		600 x 800		800 x 800
700 x 1400		600 x 800		800 x 800
1000 x 1500		800 x 800		1000 x 1000
1000 x 1500		800 x 800		1000 x 1000
1200 x 1200
1200 x 1200
900 x 2400
900 x 2400

Explosion venting: roof and facade


Passage in mm	Explosion vent for installation on roofs	Passage in mm	Explosion vent for installation in facades
700 x 900		to be specified

900 x 900

700 x 1400

1200 x 1200

1000 x 1500

1000 x 2000

900 x 2400

Ladders and stairs


	Hook-on ladder		Scissor stairs - attic ladders		Fixed Stairs – Stepladder
Single		Small 700 x 900 mm		Type GS55
Single		Small 700 x 900 mm		Type GS55
Double		Large 700 x 1200 mm
Double		Large 700 x 1200 mm
Triple		Fire rated 700 x 1200 mm
Triple		Fire rated 700 x 1200 mm
		XL 1000 x 1300 mm
		XL 1000 x 1300 mm

Floor doors - hinged


Passage in mm	with checker plate cover, flush	with recessed cover, flush	with checker plate cover, fire rated, flush	with checker plate cover, surface mounted
600 x 600
600 x 600
600 x 800
600 x 800
800 x 800
800 x 800
1000 x 1000
1000 x 1000
1250 x 1250
1250 x 1250
...... x ......	Custom sizes are available	Custom sizes are available	Custom sizes are available	Custom sizes are available

Floor doors – detachable


Passage in mm	Checker plate cover, aluminium	Checker plate cover, steel	Recess 27 mm, steel	Recess 50 mm, steel	Recess 50 mm, aluminium
500 x 500
500 x 500
600 x 400
600 x 400
600 x 600
600 x 600
800 x 600
800 x 600
800 x 800
800 x 800

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