Nominal sizes l x w x h (mm)	Shades	No./sq.m	Sq.m/pack	No./pack
Half Block	255 x 90 x 140	W Cotswold	25.2	3.5	88
Full Block	520 x 90 x 140	W Cotswold	12.6	7.0	88
Coping	470 x 160 x 40	W Cotswold	2.1 / lin.m	19.2 lin m	40

all coverage calculations include 10-15mm joint widths