Here's an idea i had of making a simple Top Bar Beehive (TBH) for very little money.

Please note i am inexperienced with bees, and this is my first attempt at keeping and attracting them.
so any advice to my design is welcome....

Step 1: Materials

Step 2: Top Bars

I started by cutting the top bars.
mine are all roughly 17 inches long, that way i can move the bars to an old wooden hive i was given, that needs repairs...
i cut all the bamboo i had to the same length,

Step 3: Cutting the Door.

for the door all i did was mark out a rough door way, i went for a slot style as i figure it would be easy to fill in with additional polystyrene.
i used the preform handles of the box to help centre the door. then i took my knife and cut the door out...

Step 4: Placing the Top Bars

once the door is done i took a top bar and placed it along the top, and marked, each side of the bamboo cane.
this is the firt and last time i did this, lol. nothing is really measured here so i cut down so the top of the bamboo sits flush with the top of the lid lip.... and also i taper it slightly so the bamboo is held in place by the sides.

then continue this step until you fill the space.

Step 5: Additional Tiers + Bai Hive

for any additional tiers i start by cutting a square in the floor of the box and the i repeat the previous step...

you can add as many tiers as you see fit, i locked them together with some wax string/tape and just tied it with a slip not at the top.

with the caps (still unsure if they are a pro or a con yet..) - but these could be removed by, either, cutting around the lip, or only cutting down to the lip when fitting the bamboo top bars to the bottom and middle boxes... the top box has the lid covering the gaps.

Bait Hive

for the bait hive i basically follow the steps for making the base, although i change the door to a smaller one, which i hand drilled with a piece of bamboo,
this way you could cut a hole in the bottom and add it to the rest of you stack while only blocking the hole.... which you would do for travel anyway.....

and there it is.... My Polystyrene Top Bar Hive.

Comments and Helpful Criticism Welcome