Any advice on a door/latch for my grow space?

Good afternoon everyone, I'm utilizing a small area for seedlings and the early stages of vegging before they go into my proper tent. The dimensions are 21.5in across, 2ft deep, and 4ft tall. I bought some mylar blankets and covered the sides and bottom. I built a little hanging rack for my light, a 125w CFL.
Anyone have any ideas on how I can seal this up? I was thinking of hanging a "blackout" blanket but I'm not sure if that's going to work.

Also should I cover the wood with mylar? Or at least the inside portions that will be directly exposed to light?

Forgive me for the poor quality pictures, my 6ft grow tent is in the way and there's not much space. I had to hold my phone at the top of the tent and take a one handed picture.

Thanks in advance.

The one thing you have to allow for is ventilation. It looks like to me that the only ventilation you will have is through the open side, I'd leave it open and set a fan there blowing in.

WattSaver said:

The one thing you have to allow for is ventilation. It looks like to me that the only ventilation you will have is through the open side, I'd leave it open and set a fan there blowing in.

Click to expand...

I have a small duct fan sitting next to me that I'm going to attach to some ducting for the ventilation, I just haven't set it up yet. Not in a huge hurry since I haven't ordered the seeds yet. But I really would like to have something to prevent the light from peeking out of the grow space.

That shit's styrofoam?
Use a big piece of cardboard with mylar on the inner side of it then. Maybe fasten it with velcro or something. Good luck

Agree with hazed ,even mylar with velcro strip round it works a treat,stick and unstick,great stuff.