MS 544 : PART 11 : SECTION 2 : 2001 (CONFIRMED:2020)
CODE OF PRACTICE FOR STRUCTURAL USE OF TIMBER : PART 11 : RECOMMENDED SPAN TABLES AND THEIR CALCULATIONS : SECTION 2 : CEILING JOISTS
This Section of MS 544 : Part 11 recommends a calculation basis for permissible clear span for ceiling joists with access at a maximum spacing of 610 mm centre-to-centre. It does not cater for the design of the ties of trussed rafters, whether prefabricated or otherwise. The uniform and concentrated loads recommended in Uniform Building By-Law (UBBL) : 1984 are considered.
This Section of MS 544 : Part 11 is applicable to the species, strength groups and grades of timber given in MS 544 : Part 2 for both single and continuous span ceiling joists as shown in Figure 1.
