WELCOME TO OUR NOTCHING JOISTS - PIPES AND CABLES PROJECT

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Summary: Notching joists for pipes and cables. Putting pipes and cables under the floor

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Notches:

Notches should only be made in the top edge of the joist.

Notches should be no deeper than 0.125 times the depth of the joist.

Notches should be no closer to the structure supporting them than 0.07 times the span of the joist and no further away than 0.25 (¼) times the span. This is to avoid the area of maximum shear force, and the area of maximum bending in the joist.

Holes.

Holes should only be drilled on the centre line of the joist. This is where the compressive and tensile load distribution is neutralised.

Holes should have a diameter of no greater than 0.25 times the depth of the joist.

Holes should be no closer together than 3 times the largest diameter permitted.

Holes should be no closer to the support than 0.25 times the span and no further away than 0.40 times the span.

Top Tools

Click on a tool below for additional information.

AEG PN3000 X2 3kg SDS Plus Hammer Drill 240V	BAHCO 244 Handsaw 22"	Bosch GCM8 Sliding Mitre Saw 216mm	Deluxe Apex Metal Shed 2020 x 1370mm
DeWalt D23700 9" Circular Saw 240V	DeWalt DW310K Reciprocating Saw 1200W 240V	Erbauer ERB183 18V Cordless Jigsaw	Erbauer SDS Auger Bit Set 6 Pc
Estwing Curved Claw Hammer 20oz (0.57kg)

Much more construction information is available in our bookstore. All the tools and fittings you need in the toolstore.

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