Reddit mentions of Richell Deluxe Freestanding Pet Gate with Door, Medium

We only baby proofed as needed. This meant electrical outlet covers for the living room, baby gates to keep him in the living room even if I wasn't there, and a (cabinet latch)[http://www.amazon.com/Safety-1st-Cabinet-Decor-2-Count/dp/B005XTCOP2/ref=sr_1_20_s_it?s=baby-products&ie=UTF8&qid=1463756508&sr=1-20&keywords=cabinet+lock] to keep him out of the cabinet with cleaners, etc., that we couldn't move. My son is pretty cautious, so the same might not work for everyone, but I am really glad now that he is older that we didn't waste time/energy on a lot of the contraptions that didn't matter for us. It also meant that we could spent a little more money on the things we did buy so they are a nicer to look at and easier to work as an adult.

Dog gates are my life's passion. Since it's a high traffic area, you're going to want a swinging walk-through gate if at all possible. Gates that you have to step over get old FAST and are a trip hazard (you think you'd get used to it. Four years later and I still trip over it sometimes). I don't know what your cubicle walls are made of, if they're sturdy enough to support a pressure mounted gate or not. Hard mounted would be ideal (many are configurable to fit your weird angled wall), but likely your management won't want you to screw anything into the walls. That leaves an exercise pen as another great option, used as makeshift wall rather than an enclosed circle. Some have "gates" you can step through. They are easy to sort of lift one end up and moved out of the way, and replaced back down after walking through it.

Exercise pen with gate:

https://www.chewy.com/midwest-exercise-pen-step-thru-door/dp/45380?utm_source=google-product&utm_medium=cpc&utm_campaign=hg&utm_content=MidWest&utm_term=&gclid=CjwKEAjw07nJBRDG_tvshefHhWQSJABRcE-ZfgHf2uzSKV49nBolahtMTgS8TQlv6I9faEBTL0McjBoCLqHw_wcB&gclsrc=aw.ds

Pressure mounted 52 in gate, Groupon. I have like 3 of these:

https://www.groupon.com/deals/gg-regalo-baby-safety-gate-1?deal_option=fe570c8e-29f2-11e7-82b0-00259069d7cc&utm_source=Google&utm_medium=cpc&utm_campaign=US_DT_SEA_GGL_TIM_TTT_PADS_CBP_CHP_NBR_g*gg-regalo-baby-safety-gate-1_productpartitionid*301711209503_campaignid*228801421_adgroupid*44435073720_prodtarget*301711209503_productid*58469349_d*Goods-Product-Ads_mobile*true_keyword*_adtype*pla_merchantdid*10018412_c*192368130883_k*_m*_target*aud-297096541820:pla-301711209503_adposition*1o8&mr:referralID=136c3ff5-4623-11e7-9227-005056946dac&gclid=CjwKEAjw07nJBRDG_tvshefHhWQSJABRcE-ZVF6kHuE8g8ZdTi3vm8NjOCvrQvq0CoMH3u6dG_gJfxoCMGvw_wcB&fallback=true

Another option is to use a standalone/freestanding gate. I have several. These are really nice, but many are flimsy and can be pricey. I'm guessing your office has carpet. If you go this route, get a gate with legs like this one. I have this one as well. Many dogs can push through them/push them over, just an FYI. But they look great and will contain dogs that respect barriers. The kind that look like this are laughably easy to knock over, esp on carpet.

You'll want to price shop. My links are just examples, I bought many on EBay and thrift stores for much better prices. Though that Groupon link actually is a good deal.

https://www.amazon.com/gp/product/B007IX0IUE/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

this one is 28" high which is an exact match with my cabinet. they have a lot of different sizes and configurations. you can also search for "hearth" gates. this isnt the heaviest of gates but the quality is pretty nice and i think will serve it's purpose. It will serve as more of a deterrent than a complete fix.