How do you catch drawing literacy gaps in Garowe bids?

A low bid in Garowe often reflects a reading gap, not a cheaper way of building. If the estimator or foreman cannot follow the sections, details and notes on the drawing set, the price covers what they imagined rather than what is drawn. Work that was never priced then appears on site as a variation or a shortcut.

How does drawing literacy affect a Garowe bid?

A bid is only as complete as the reader's understanding of the drawings. Someone who reads a plan as a picture, not as a set of levels, dimensions and notes, will miss the parts that cannot be seen from above. A section may show a step in the foundation, a fall on a roof or a lintel over an opening. A detail may show how steel sits inside concrete at a corner. If those sheets are not read, the quantities and the method in the bid are wrong before any price is written.

This is a reading problem, not a pricing trick. The bidder may believe the number is complete. The result on site is the same: work stops, the client is asked for more, or the element is built thin. The check is to ask each bidder to explain two or three drawn details in their own words, in front of you, before you compare totals. Listen for levels, dimensions and the sequence of work. Ask the municipal engineer's office which drawing set it holds for the plot and whether any sheets were revised.

What do misinterpreted construction details look like on site?

Misread details usually show up as geometry that does not close. A wall that does not meet a column line, a slab edge at the wrong level, a door opening that is too narrow for its frame. These are not abstract errors. They are the physical result of a dimension taken from the wrong sheet or a note that was never read.

Watch for these on a walk-round:

• Setting-out lines that do not match the grid on the approved drawing
• Openings formed to a nominal size instead of the drawn size
• Changes made on site without a revised drawing or a written instruction
• A foreman who cannot point to the sheet that fixes a level or a fall

A short walk over a recent site in Garowe, with the drawings in hand, shows how well the crew reads them. Ask the site team to show you the sheet that governs a specific element, then check the built work against it. Where the drawing set is unclear, ask the designer for a clarification before the next pour, not after.

How do unrealistic tender allowances hide the gap?

A bid that omits a drawn element still looks tidy on paper. The gap appears as a low total, and the missing work is invisible until the element is due. Common omissions include steel detailing at junctions, formwork to a shaped element, or a waterproofing layer that the drawing shows but the bill does not describe in full.

As general practice, confirm the bid against the drawing set sheet by sheet, not against the bill of quantities alone. Ask the bidder to list the drawings they priced from and the revision numbers. Check what the bid says about design responsibility, quantities and site instructions; your contract decides who carries the cost of a drawn item that was left out. Never assume the lowest total is the most complete. Ask two bidders to price the same clarified drawing set, then compare what each one included.

What to do next

Pick one element on the next Garowe tender, such as the foundation step or a roof detail. Send every bidder the same drawing sheet and ask for a one-page written method and quantity for that element. Compare the answers before you open the totals. Where a bidder cannot describe the drawn work, ask for a clarified price or treat the bid as incomplete.