A garden orb weaver probably
That description of a spider can relate to hundreds of species of spider. Sorry, there, but its a bit too vague.
Poisonous spiders are many different colors. The Black Widow is as the name states black with a red hourglass on the bottom of the abdomen. The Brown Widow is a light to dark brown spider that looks like the Black Widow only with patterns of brown. It too has a red hourglass on the bottom of the abdomen. The Brown Recluse Spider too is brown like the name states with a darker brown 'violin' marking on the cephalothorax. The Hobo spider is light brown with a darker brown abdomen and a cream colored strip going down the center of the cephalothorax. Yellow Sack Spiders are usually yellow or creamy colored. The Brazilian Wandering Spider is a dark brown spider and usually have red hairs on their chelicerae.
A Woodlouse Spider!
I think you're looking at a Hobo spider
It is likely a brown widow spider. They're not as venomous as a black widow spider, but you should still be very careful with it.
A spider that has a dark brown abdomen, with reddish brown legs, and a light beige bottom with dark brown club like claws could be a wolf spider. It could also be a tree spider.
a brown reclouse
From what I have been told, this sounds like an Orb Spider...which is in the Widow Family and is extremely venomous.
If you are in Australia it sounds like a Mouse spider. I'm in North America and found a similar spider in my basement this morning, but can't seem to find out what it is.
the yellow spider ,red · Determine the main colors that make up the spider. For example, a black widow spider is shiny and black with a bright red mark underneath that looks like an hourglass. · 2 Determine how many eyes the spider has. Most arachnids have eight eyes, but the brown recluse has six eyes and is brown without any markings. · 3 Notice the patterns on the spider's abdomen and the amount of hair on its legs. For example, the hobo spider and brown recluse look similar, but the hobo has a herringbone pattern on its abdomen and more hair on its legs. · 4 Catch the spider in a humane bug catcher if you cannot identify it immediately. Examine it closely, using a magnifying glass if necessary. Answered by ehow.com
A fiddle spider(also called the violin spider or the brown recluse) is a medium-sized venomous spider of North America. It is easily recognized by the violin shape on its abdomen.
If you in Northern Wisconsin it could be a typical Orange Garden spider. Orange legs with orange - white - brown - white - black tips. Orange head and thorax with a colorful Orange black, white and yellow in a pattern like a wasp on the abdomen.