Ocizzu:
I hope we will be able to learn from what am about to start with today. we will be talking about lands and their sizes and we might add prices of how they are being sold in Lagos or around other states .
A land can be said to be the part of the earth's surface that is not covered by water.
Lands are sold in plots,acres and hectares.
PLOT
plot is a marked out piece of Land for the purpose of building or farming. The size of a plot can vary for different reasons but according to Nigeria's land division, the appropriate plot for a house construction is 50 x 100ft which can accommodate a standard house with a small compound.
ACRES
An Acre consist of 6 plots. The measurement in sqm is a total of 4,046sqm.
HECTARES
A Hectare consist of 15 plots. the measurement is 10000sqm

Ocizzu:
we have been moving gradual about building constructions and I will love to explain everything in details staring from
1) the land needed i.e the sizes .
2) materials needed I.e blocks, concrete, steel reinforcement, woods
3) understanding drawings and identifying how you can understand it.
4) how supervision works
5) finishes i.e painting, tiling e.t.c.
6) quantity surveying
Earlier I wrote about lands where be talked about what arces, plots and hectares means.

Lets talk about BLOCKS. Many at times ]people do ask me these questions . why hollow blocks and why dont we use the ones without holes. Feel free to tell us but on this thread I will explain more and shed more light on it.
Concrete blocks, cement blocks, come in a wide variety of shapes and sizes. They are made out of a mixture of Portland cement, sand, gravel and water. When the mixture is wet it is paste-like and can be cast into the form of the block. When it dries, it hardens until it becomes like stone. Generally speaking, there are two kinds of concrete block, hollow and solid.
Hollow Blocks
Hollow concrete blocks have one or more hollow cores. These cores reduce the total cross-sectional area of the block by at least 25 percent. In general, a hollow-core concrete block is more than 50 percent solid. Standard hollow concrete blocks come in full and half sizes. Full-size blocks are rectangular and have two cores. Half size blocks are cubical and have one core.
Solid Blocks
Contrary to what their name indicates, solid concrete blocks are not necessarily solid. They are merely less hollow than the blocks that are normally called hollow. Solid blocks have core holes that take up less than 25 percent of the cross-sectional area of the block.
Differences
Hollow blocks are often used to build large structures like boundary fences. The reduced volume of concrete used to make each block adds up to a significant savings in cost for the materials for the whole wall. The hollow cores also give adequate room to place reinforcing materials like steel bars if the design calls for reinforcing. Sometimes water pipes or electrical conduits are run through them. while solid blocks are used where holes isnt needed and it is more heavy .
2) The heat preservation effect of the hollow shale block walls is 3.16 times higher than that of traditional clay brick walls, 3.11 times higher than that of concrete block walls, and 1.69 times higher than that of recycled concrete blocks walls.
if you have more to add please add more . thank you for reading