Show production board clamps down on commercial with the civilian production administration clamping the lid tighter on commercial construction throughout the nation because of building material shortages arnold al seller seiler district manager here for utah thi this week expressed reasonable assurance that denials for the next 45 1 l i days will exceed approvals in dollar value due to the fact that approvals will be confined to the following I 1 projects essential to public health and safety 2 projects which will increase production of critical materials 3 i projects providing urgently needed veterans educational faaili ucb aeb 4 essential and non deferrable maintenance and repairs while building material prodoc tion was on the upswing before ac he spring wave of work stop stoppage paget and strikes mr air seller seiler reported the inventories ven tories have been ic verely icv frely depleted during the ianke period As a result mr seller seiler added the gap between supply and demand is widening the pre strike upswing gh that march lumber production product io d ia G billion board feet fee t r rose 03 e 21 cent above february which h kh per er more than d double the normal s sea a onal ional inc increase roase in common and face brick one ole th the bas babii building materials of A abw i I 1 p to production of tle milli million on bricks w swa more than double the output i april 70 and represents an lit in in |