Concrete block manufacturers across Barbados are between a rock and a hard place as they struggle to supply the heightened demands of an emerging building boom.Investigations by Barbados TODAY revealed that the situation has triggered an apparent delay in some projects being able to move ahead expeditiously.And with a string of other capital works projects announced by the Government yet to get off the ground, block makers fear they could be even more overwhelmed when these major construction projects start.Added to this, major repairs to critical machinery at some plants have not helped to make matters any easier.“We have a surplus of orders right now...the orders are overwhelming in terms of the number at this time when the machine can only make so much. We are pushing our production, but the quantity we make today might not meet what is in demand right now, and all block companies at this time are having the same challenges,” Block and Tile Products Managing Director Michael Broome told Barbados TODAY.