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Merronbrook

timber frame manufacturers, easi-joist Merronbrook

Easi – Joist Span Tables

The following Easi – Joist span tables are to be used as a basic guide to achievable joist span for given depth and spacing, and should be used for estimating of feasibility only.

Due to variations in timber grades, load sets, support conditions and bearing widths, the tables are not suitable as a design tool. Please get in touch for more information and design assistance, we would be happy to advise and consult on what is best for your project.

United Kingdom Easi Joist Span Table

WS200 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable span – EC5 UK
19540072 x 354,675
97 x 355,025
122 x 355,275
147 x 355,500
60072 x 354,025
97 x 354,425
122 x 354,725
147 x 354,925
WS200 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable span – EC5 UK
21940072 x 475,175
97 x 475,550
122 x 475,850
147 x 476,075
60072 x 474,675
97 x 474,975
122 x 475,225
147 x 475,450
WS250 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable span – EC5 UK
25440072 x 475,650
97 x 476,025
122 x 476,350
147 x 476,625
60072 x 475,075
97 x 475,425
122 x 475,675
147 x 475,925
WS300 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable span – EC5 UK
30440072 x 476,275
97 x 476,700
122 x 477,075
147 x 477,375
60072 x 475,625
97 x 476,025
122 x 476,325
147 x 476,600
WS400 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable span – EC5 UK
41740072 x 477,200
97 x 477,650
122 x 478,000
147 x 478,275
60072 x 476,400
97 x 476,775
122 x 477,075
147 x 477,325

United Kingdom and Ireland Roof Easi Joist Span Table

WS200 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable roof span – EC5 UK & Ireland
19540072 x 355,375
97 x 356,050
122 x 356,575
147 x 357,050
60072 x 354,875
97 x 355,350
122 x 355,750
147 x 356,100
WS200 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable roof span – EC5 UK & Ireland
21940072 x 476,425
97 x 477,175
122 x 477,725
147 x 478,200
60072 x 475,625
97 x 476,200
122 x 476,650
147 x 477,075
WS250 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable roof span – EC5 Uk & Ireland
25440072 x 477,275
97 x 478,050
122 x 478,675
147 x 479,200
60072 x 476,325
97 x 476,950
122 x 477,475
147 x 477,950
WS300 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable roof span – EC5 UK & Ireland
30440072 x 477,650
97 x 479,325
122 x 4710,025
147 x 4710,650
60072 x 476,900
97 x 478,075
122 x 478,675
147 x 479,200
WS400 easi-joist®
Joist depthJoist centresChord dimensionsMaximum achievable roof span – EC5 UK & Ireland
41740072 x 478,375
97 x 4710,475
122 x 4712,325
147 x 4713,025
60072 x 477,550
97 x 479,450
122 x 4710,550
147 x 4711,150

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