QUESTIONS & ANSWERS

 

 

Q     Why do I need calculations ?

 

A     It is impossible to get the size of beam/timber without accurate calculations.

 

Q     Why do I need to give the span ?

 

A     The span is probably one of the most important parts of the required calculation as it is the figure on     

       which most of the calculation is based.

 

Q     Why is the measurement have to be in metric ?

 

A     Metric measurement is the most accurate method of measurement and weights. It is by far the most

       accurate. Also local authorities mostly demand the calculation to be in the metric form.

 

Q     Can a steel beam be placed on timber bearings such as a stud wall ?

 

A     Yes it can -- but be careful of the crushing and bending actions of the timber. Calculations are necessary.

 

Q     Who needs to see the calculations when I have got them ?

 

A     It is always advisable to give a copy of the calculations to your local authority building surveyor so they 

       can give you the go ahead to use the element that has been calculated.

 

Q     Can a steel beam be built on to a timber post ?

 

A     Without calculations no. The calculations would prove the adequacy of the post to support the weight.

 

Q     What is a padstone and what does it do ?

 

A     A padstone is made of concrete or stone. A padstone is nearly always put under the steel beam as a

       means of spreading the weight to prevent the brick or blockwork from cracking or breaking under the

       weight.

 

Q     When do I need a steel beam or a timber beam ?

 

A     It all depends on the application of the beam. A steel beam if bearing on to a suitable bed such as brick 

       or block, would be a smaller size to carry the weight than a timber beam. The steel beam would also be

       cheaper to buy in most countries. 

 

Q     Who is legally responsible if things go wrong ?

 

A     Always give a copy of the details and calculations to your local authority building control department for

       checking. They would have the ultimate responsibility provided you have given them enough time to do

       their checking before giving you the go ahead to use the element. The calculations are based on your

       measurements and details, so make sure they are correct.