wait for mortar to harden?

[jimkramer]

About to start the block stand tomorrow - If I use mortar to level the first course of blocks, do I have to wait a day for the mortar to harden before laying on the second? Or can I stack all 4 courses in one day?

If I get the first course leveled correctly, does this mean I won't need mortar to level the other courses?

[GianniFocaccia]

The mortar will harden sufficiently for you to keep going as long as there is daylight.

[brickie in oz]

Originally Posted by jimkramer

About to start the block stand tomorrow - If I use mortar to level the first course of blocks, do I have to wait a day for the mortar to harden before laying on the second? Or can I stack all 4 courses in one day?

You can lay as many courses as you like, we generally go to 8 courses, then it gets too high to lift the blocks.

Originally Posted by jimkramer

If I get the first course leveled correctly, does this mean I won't need mortar to level the other courses?

No, there are specific blocks that are made to dry stack, even then they require a tweaking with a plastic wedge to get them level(ish) and plum(ish) but these blocks are made to be core filled with fine concrete and rebar to stabilize them.